/**
 * Copyright 2000 self.com.au
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License. (http://www.apache.org/licenses/LICENSE-2.0)
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed 
 * on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for 
 * the specific language governing permissions and limitations under the License.
 *
 * <dhamma-message src="Atisha (11th century Tibetan Buddhist master)">
 * 	The greatest achievement is selflessness. The greatest worth is self-mastery.
 * 	The greatest quality is seeking to serve others. The greatest precept is continual awareness.
 * 	The greatest medicine is the emptiness of everything. The greatest action is not conforming with the worlds ways.
 * 	The greatest magic is transmuting the passions. The greatest generosity is non-attachment.
 * 	The greatest goodness is a peaceful mind. The greatest patience is humility.
 * 	The greatest effort is not concerned with results. The greatest meditation is a mind that lets go.
 * 	The greatest wisdom is seeing through appearances. 
 * </dhamma-message>
 *
 * @author Ashin Wimalajeewa
 */
package self.amigo.elem;

import java.awt.Point;

import self.gee.IGraphicElement;
import self.gee.ILinkGraphic;
import self.gee.ILinkableGraphic;
import self.gee.IPointSeriesElement;

public class LinkView extends ALinkableGraphic implements ILinkGraphic, IPointSeriesElement {
	
	/**
	 * If the internal state of this class ever changes in such a way that it can't be defaulted,
	 * then the {@link #serialVersionUID} should be incremented to ensure serialized instances cleanly fail.  
	 */
	private static final long serialVersionUID = 1;
	
  public LinkView() {
    setDelegate( createDelegate() );
  }

  protected IGraphicElement createDelegate() {
    return new Essential();
  }

  public BasicLinkView getBasicLink() {
    return (BasicLinkView) delegate;
  }

  // IPointSeriesElement
  public int getNoOfPoints() {
    return ((IPointSeriesElement) delegate).getNoOfPoints();
  }

  public void getFramePoints( java.util.List store ) {
    ((IPointSeriesElement) delegate).getFramePoints( store );
  }

  public void setFramePoints( java.util.List data ) {
    ((IPointSeriesElement) delegate).setFramePoints( data );
  }

  // ILinkGraphic
  public void linkerHasChanged( ILinkableGraphic mover, int event ) {
    if ( ILinkableGraphic.REMOVED_EVENT == event )
      remove();
    else {
      ((Essential) delegate).linkerHasChanged( mover, event );
      fireLinkerHasChangedEvent( event );
    }
  }

  public ILinkableGraphic getSideA() {
    return ((Essential) delegate).getSideA();
  }

  public ILinkableGraphic getSideB() {
    return ((Essential) delegate).getSideB();
  }

  public void linkSideA( ILinkableGraphic side ) {
    ((Essential) delegate).linkSideA( side );
  }

  public void linkSideB( ILinkableGraphic side ) {
    ((Essential) delegate).linkSideB( side );
  }

  public void refreshEndPoints() {
    ((Essential) delegate).refreshEndPoints();
  }

  protected class Essential extends BasicLinkView {
  	
	/**
	 * If the internal state of this class ever changes in such a way that it can't be defaulted,
	 * then the {@link #serialVersionUID} should be incremented to ensure serialized instances cleanly fail.  
	 */
	private static final long serialVersionUID = 1;
	
    protected IGraphicElement getElementAtPoint( Point handle ) {
      return layer.getElementAtPoint( handle, LinkView.this );
    }

    protected void attachToSide( ILinkableGraphic side ) {
      side.attachElement( LinkView.this );
    }

    protected void detachToSide( ILinkableGraphic side ) {
      side.detachElement( LinkView.this );
    }
  }
}
